Toyokazu Hiranuma

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Tetrahydrobenzindole derivatives
- Patent number 6,498,251
- Issue date Dec 24, 2002
- Meiji Seika Kaisha, Ltd.
- Chika Kikuchi
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Optically active tetrahydrobenzindole derivative
- Patent number 6,407,112
- Issue date Jun 18, 2002
- Meiji Seika Kaisha, Ltd.
- Masao Koyama
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Tetrahydrobenzindole compounds
- Patent number 6,355,642
- Issue date Mar 12, 2002
- Meiji Seika Kaisha, Ltd.
- Masao Koyama
- C07 - ORGANIC CHEMISTRY